PC Podiatrist Foot & Ankle Structure 2

Question 1

Which tarsal bone articulates with both the tibia and fibula to form the ankle mortise?

Accepted Answer

Talus

Answer

The talus is the only tarsal bone that articulates superiorly with the tibia and fibula, forming the ankle (talocrural) mortise joint.

Question 2

The sustentaculum tali is a bony shelf found on which tarsal bone?

Accepted Answer

Calcaneus

Answer

The sustentaculum tali is a medial shelf of the calcaneus that supports the talus and provides attachment for several ligaments and tendons.

Question 3

Which intrinsic foot muscle originates from the plantar aponeurosis and inserts into the proximal phalanges, flexing the MTP joints?

Accepted Answer

Flexor digitorum brevis

Answer

The flexor digitorum brevis originates from the calcaneal tuberosity and plantar aponeurosis and inserts into the middle phalanges, flexing the lesser toes at the PIP joints.

Question 4

The Lisfranc joint complex includes articulations between the metatarsals and which set of bones?

Accepted Answer

Cuneiforms and cuboid

Answer

The Lisfranc (tarsometatarsal) joint complex consists of the articulations between the five metatarsal bases and the three cuneiforms plus the cuboid.

Question 5

Which nerve provides sensory innervation to the first web space on the dorsum of the foot?

Accepted Answer

Deep peroneal nerve

Answer

The deep peroneal (fibular) nerve supplies sensory innervation to only the first dorsal web space between the hallux and second toe.

(PC) Podiatrist Certification Practice Test

(PC) Podiatrist Certification Practice Test

PC Podiatrist Foot & Ankle Structure 2